Electric lamp



(No Model.) 3 Sheets-Sheet 1. L. G. WOOLLEY.

ELECTRIC LAMP.

Patented pr. 20, 1886.

IN VEJV T OR.

N, PETERS. Phcwum n lm, Wavimm. D. c.

(No Model.) I 3 Sheets-Sheet 2.

' L. G. WOOLLEY.

ELECTRIC LAMP.

No. 340,182. Patented Apr. 20, 1886.

WITNESSES. W013.

. t I I N PETERS, Phawulhe n lwr. wnmgum, 0.6.

(No Model.) 3 Sheets-Sheet 3. L. G. WOOLLEY.

ELECTRIC LAMP.

Patented Apr. 20', 1886. Fig.5.

WITNESSES. i m VEJVTOR.

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UNITED STATES PATENT OFFICE.

LEONIDAS G. \VOOLLEY, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR TO HENRY H. MOGAFFEY AND CHESTER BRADFORD, BOTH OF INDIAN- APOLIS, INDIANA.

ELECTRIC LAMP.

SPECIFICATION forming part of Letters Patent No. 340,182, dated April 20, 1886.

Application filed May 12, 1885. Serial No. 165,200.

. view,looking to the left from the dotted line To all whom, it may concern.-

Be it known that I, LEONIDAS G. \VOOLLEY, of the city of Grand Rapids, county of Kent, and State of Michigan, have invented certain new and useful Improvements in Electric ltLamps, of which the following is a specifica My said invention relates to electric-arc lamps, especially to that class which are used with reflectors, as in locomotive head-lights. Heretofore in such lamps much difiiculty has been experienced by reason of the varying position of the are consequent upon the unequal consumption of the carbons. It has also been diiiicult to secure in such a lamp that steady and equal motion of the carbons which is necessary to the perfect working thereof, by reason of the jolting or jarring to which such lamps have been subjected, and this difliculty has been intensified by thelocation of the solenoid and other of the heavy parts at some distance above the base, which has been necessary in the double-focusing lamp, which it has been thought necessary to employ hereto- 7 fore.

My said invention consists in the construction of a lamp embodying one non-consumable electrode, whereby the first difficulty is ob viated, and in the rearrangement and improve ment of the mechanism permitted by this departure from the common construction of lamps wherein both electrodes are formed of carbon, and consequently both consumable.

The non-consumable electrode forms the subject-matter of another application for patent, and consequently will not be fully described herein.

The new and improved mechanism and the improved rearrangement of the mechanism gerierally will be hereinafter described in detai Referring to the accompanying drawings, which are made a part hereof, and on which similar letters of reference indicate similar parts, Figure l is a front elevation of an electric head-light with the case removed; Fig. 2, a side elevation of the same; Fig. 3, a rear elevation; Fig. 4, a central vertical sectional (N0 model.)

4 4 in Fig. 3; Fig. 5, a horizontal sectional view, looking downwardly from the dotted line15 5,and Fig. 6 a horizontal sectional view, looking upwardly from the dotted line 6 6.

In said drawings, the portions marked A represent the reflector of the lamp; B, the supporting or rigid frame-work; C, the carboncarrying frame; D, the vibrating frame carrying th e clock-work; E, the vibrating bar carrying the armature of the solenoids; F, said solenoids; G, the dash-pot attached to the bar E, or to a part moving therewith; II, a non consumable electrode, and I the carbon or prdinary consumable electrode. The reflector A is not dissimilar from those in common use, and is secured in position by the stud a, connecting it to the framework B, and by asuitable bearing upon the base B of the framework. The frame-work B is mounted on the base B, and consists, mainly, of two parallel uprights secured together at the top by a crossbar, (preferably cast integrally therewith,) and is steadied by braces B. Grooved ways are formed in its inner sides,facing each other, in which the cross-head of the carboncarrying frame runs,and itis provided at the proper points with bearings for the pivots of the pivoted frame D and bar E.

The carbon-carrying frame 0 consists of a rack-bar located midway between the uprights of the frame B and adapted to engage with the elock-work on the frame D, and provided with a cross-head, O, which engages with and moves in ways in said frame B, being armed with anti-friction trucks 0, as shown. The cross-head C has widely-extended arms provided with bearings for the axles of the antifriction trucks, and said anti-friction trucks have long hubs and V-shaped edges, as shown most plainly in Fig. 6, and the ways in the frame B are also V-shaped, and this construction, while giving the advantage of anti-friction trucks, prevents any undue play between the parts, which, if permitted, would render the position of the carbon carried by the frame 0 somewhat uncertain. Extending out from this cross-head is an arm, 0 which carries upon its outer point the carbon-holding device hon-carrying frame, a cross: head thereon I, which, by means ofa thumb-nut, 1 can be i which enters and moves n sa d ways, mechremoved and replaced at pleasure. The carbon is held in the lower end of this device by pivoted arms 2', operated by thumb-screws i", as will be readily understood. The frame D is mounted on pivots d, which enter hearings in the ends of the adjustable rod b, which is screw-threaded, and passes through a hole in one side of the frame B, and has nuts b upon each side of the part of said frame through which it passes, by which the position thereof, and also of the frame D, can be adjusted. This frame D carries the clock-work by which the movement of the carbon'carrying frame is controlled through the connection of said frame D with the solenoid. The bar E is mounted on the pivot e, and carries 'upon one end the armature of the solenoid and at the other end is connected by the connecting-rod E to the free end of the frame D. Thus said bar, when actuated by the solenoid, operates said frame work and throws the clock-work eitherinto or out of engagement with the detent d, as will be readily understood, the operation being,when the armature is drawn down by the increasing power of the electric current, consequent uponthe shortening of the are, that said clock-work is carried up into engagement with said detent, and when the armature is permitted to rise by the decreasing power of the electric current, consequent upon the increasing length of the are,

the said clock-work is carried down out of engagementwith said detent, and the clock-work being set in motion the carbon-carrying frame is permitted to descend, carrying the carbon into closer relation with the lower electrode,

- the parts is prevented by the dash-pot G, connected to said bar preferably outside the'solenoid and alongside thereof. This dash-pot G and also the solenoids F are of the ordinary and well-known construction, and need no extended description.

' The electrode H, as before stated, in itself is not a part of the present invention, as it forms the subject-matter of another application for Letters Patent, except in so far as a non-consumable electrode is a feature of this lamp as now produced.

The carbon I is the ordinary carbon pencil used in electric-arc lamps, and except in the manner of attachment and mounting already described is not peculiar to this invention.

Having thus fully described my said invention, what I claim as new,and desire to secure by Letters Patent, is-

'1. The combination, in an electric lamp, of a frame-work having ways therein, the caranism mounted on said frame-work for controlling the movements of said carbon-carrying frame, a solenoid mounted on the base of said frame-wo1-k,and connections between said solenoid and said mechanism.

2. The combination, in an electric lamp, of the frame-work having ways therein, the carbon-carrying frame, a 'cross-head thereon having widely-extended arms, pivot shafts or axles mounted in said arms, anti -friction trucks having long hubs and formed to fit and run in the ways in the framework and mounted on said axles, a clock-work mechanism for governing the carbon -carrying frame, and the solenoid and connections thereto for governing said mechanism, substantially as set forth.

3. In an electric lamp, in combination with the frame D, carrying the clockwork, the screw-threaded rod 1), having bearings for the pivots of said frame in its ends, and nuts I) upon-each side of the portion'of the frame through which it passes, whereby it and said frame D may be adjusted, substantially as shown and specified.

4. The combination, in an electric lamp, of the frame-work, the carbon-carrying frame, the pivoted frame carrying the clock-work, the pivoted bar E, connected to the armature of the solenoids at one end and at the other end to said pivoted frame carrying the clockwork by means of a connectingrod, substantially as set forth.

5. The combination, in'an electric lamp, of the frame D, carrying the clockwork, pivoted bar E. connected to the armature of the solen oids at one end and to said frame D at'the other by a connecting-rod, and the spring E connecting said frame D and bar E, substantially as shown and specified.

6. The combination, in. an electric lamp, of a base, B. therefor, the frame B thereto, the solenoid F, mounted on said base, the frame -D, mounted on said frame B, a carbon-carrysaid solenoid, substantially as set forth.

7. The combination, in an electric lamp, of the frame carrying the clock-Work, vibrating bar connected thereto and to the armature of the solenoid, and having upon its end outside of said solenoid an enlarged portion or weight, a dash-pot arranged in'the same frame with and alongside the solenoids, and a connection between said bar and sai'ddashpot, substantially as shown and specified.

In witness'whereof I have hereunto set my hand and seal, at Indianapolis, Indiana, this 12th day of March, A D. 1885.

LEON IDAS G. \VOOLLEY. [L. s.]

In presence of O. BRADFORD, CHAS. L. THURBER. 

